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C71500 Copper-nickel vs. SAE-AISI M7 Steel

C71500 copper-nickel belongs to the copper alloys classification, while SAE-AISI M7 steel belongs to the iron alloys. There are 21 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is C71500 copper-nickel and the bottom bar is SAE-AISI M7 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
200
Poisson's Ratio 0.33
0.29
Shear Modulus, GPa 52
77
Tensile Strength: Ultimate (UTS), MPa 380 to 620
760 to 2210

Thermal Properties

Latent Heat of Fusion, J/g 230
270
Melting Completion (Liquidus), °C 1240
1560
Melting Onset (Solidus), °C 1170
1510
Specific Heat Capacity, J/kg-K 400
450
Thermal Conductivity, W/m-K 28
28
Thermal Expansion, µm/m-K 16
12

Otherwise Unclassified Properties

Base Metal Price, % relative 41
18
Density, g/cm3 8.9
8.1
Embodied Carbon, kg CO2/kg material 5.1
8.9
Embodied Energy, MJ/kg 74
130
Embodied Water, L/kg 280
100

Common Calculations

Stiffness to Weight: Axial, points 8.6
14
Stiffness to Weight: Bending, points 19
24
Strength to Weight: Axial, points 12 to 19
26 to 76
Strength to Weight: Bending, points 13 to 18
23 to 47
Thermal Diffusivity, mm2/s 7.7
7.8
Thermal Shock Resistance, points 12 to 20
24 to 69

Alloy Composition

Carbon (C), % 0
1.0 to 1.1
Chromium (Cr), % 0
3.5 to 4.0
Copper (Cu), % 63.5 to 70.6
0 to 0.25
Iron (Fe), % 0.4 to 1.0
79.8 to 83.8
Lead (Pb), % 0 to 0.050
0
Manganese (Mn), % 0 to 1.0
0.15 to 0.4
Molybdenum (Mo), % 0
8.2 to 9.2
Nickel (Ni), % 29 to 33
0 to 0.3
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0.2 to 0.55
Sulfur (S), % 0
0 to 0.030
Tungsten (W), % 0
1.4 to 2.1
Vanadium (V), % 0
1.8 to 2.3
Zinc (Zn), % 0 to 1.0
0
Residuals, % 0 to 0.5
0